Highly conductive and mechanically robust MXene@CF core-shell composites for in-situ damage sensing and electromagnetic interference shielding

被引:13
|
作者
Hu, Yi [1 ,2 ,3 ]
Chen, Junzhen [1 ,3 ]
Yang, Guoyu [1 ]
Li, Yujun [1 ,3 ]
Dong, Ming [2 ,3 ]
Zhang, Han [2 ]
Bilotti, Emiliano [4 ]
Jiang, Jianjun [1 ,3 ]
Papageorgiou, Dimitrios G. [2 ]
机构
[1] Northwestern Polytech Univ, Sch Mech Engn, Xian 710072, Peoples R China
[2] Queen Mary Univ London, Sch Engn & Mat Sci, London E1 4NS, England
[3] Shaanxi Engn Res Ctr Digital Mfg, Xian 710072, Peoples R China
[4] Imperial Coll London, Dept Aeronaut, London SW7 2AZ, England
基金
欧盟地平线“2020”; 中国国家自然科学基金;
关键词
MXene (Ti 3 C 2 T x ); Carbon fiber reinforced resin matrix; composites (CFRP); Electrophoretic deposition (EPD); In -situ damage sensing; Electromagnetic interference shielding; effectiveness (EMI SE); REDUCED GRAPHENE OXIDE; REINFORCED POLYMER COMPOSITES; COATED GLASS-FIBER; CARBON-FIBER; 2D MXENES; PERFORMANCE; HYBRID; ABSORPTION; LIGHTWEIGHT; MECHANISMS;
D O I
10.1016/j.compscitech.2023.110356
中图分类号
TB33 [复合材料];
学科分类号
摘要
In this work, a new type of carbon fiber reinforced polymer (CFRP) composite was fabricated by introducing MXene nanoparticles onto the surface of carbon fibers (CF) via electrophoretic deposition (EPD) followed by thermal annealing. The MXene-reinforced CF/epoxy composites displayed enhanced mechanical properties and electrical conductivity as well as in-situ damage sensing capability. The uniformly deposited MXene nanoparticles contributed to a considerable enhancement of the flexural strength of CFRPs through hydrogen bonding and mechanical interlocking. The thermal annealing treatment reduced the amount of oxygen groups on the surface of MXene nanoparticles and enabled a 66 % increase of the out-of-plane electrical conductivity and a 20 % improvement of the electromagnetic interference (EMI) shielding effectiveness. The exceptional EMI performance of the core-shell hierarchical microstructure can be ascribed to the polarization of the inhomogeneous interfaces, the dipole polarization, and the conductive loss effect as a result of the presence of annealed MXenes on the surface of CFs.
引用
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页数:12
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